Preheating means for carburetors



C. C. POWERS.

PRE HEATING MEANS FOR CARBUR ETORS. APPLICATION FILED SEPT, 26, 1919.

1,404, 45, Patented Jan. 24,1922.

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GHAR'LES G. POWERS, F KERNVILLE, CALIFORNIA PREHEATING MEANS FOR CARBURETORS.

Specification of Letters Patent.

Patented Jan. 2%, WW

Application filed September 28, 1919. Serial No. 326,530.

T 0 all whom it may concern.

Be it known that I, CHARLES C. POWERS, a citizen of the United States, residing at Kernville, in the county of Kern and State of California, have invented a new and Improved Preheating Means for Carburetors,

of which the following is a specification.

This invention is in the nature of an attachment for carburetors and is especially designed for preliminarily heating the air pipe or conduit to the carburetor and the combustible fuel (air and gas) as itpasses from the carburetor to the intake of an internal combustion engine.

As is well known in the use of volatile fuel when the fuel feed pipe is chilled by low atmospheric pressure, difficulty is experienced, when the engine is to be initially started, and that means for heating the carburetor is necessary to bring said, carburetor to the proper operative condition.

My invention has for its purpose to pro vide a simple and inexpensive way for utilizing the electric wire that passes from the batteries or other source of electrical energy, to the coil box of an explosive engine, whereby to preheat the infeeding air as it passes from the carburetor with the volatile fuel in a vaporized condition so long as the electric circuit from the source of electrical energy to the coil box is in active condition.

My invention further has for its purpose to provide a means of the general character stated and for the purposes specified of a pcculiar and novel construction hereinafter explained in the detailed description, specifically poin'ted out in the appended claim and illustrated in the accompanying drawings, in which:

Figure l is a diagrammatic view illustratin my invention as operatively applied.

igure 2 is a diagram that illustrates a modified arrangement of my invention.

In carrying out my invention, I utilize the source of electrical energy, the storage battery or other suitable current generator, usually carried upon the vehicle using-my improved preheating means.

In the simplest arrangement of my invention. I preferably use a fine cotton covered wire 1 in a circuit whose terminals join with the battery or other electrical source B.

The aforesaid wire circuit includes a plurality of sets of coils, one set (2) of which passes around. in close relation to, but not in contact with the pipe at through which the air is led to the carburetor .5.

The other set of coils 6 pass around, but not. in contact. with, the pipe 7 through which the vaporized and preheated fuel passes to the intake oft-he engine, it being understood that the. air that passes into the carburetor in a preheated state. mixes with the spray of liquid fuel that discharges. under pressure, from the jet nozzle that extends into the carburetor in the usual manner.

In Figure 3, I have illustrated a further application of my preheating means and, in this form. a heating coil 9 is located around the pipe 10 that carries the gasoline from the fuel tank to the injector or spray nozzle which discharges into the carburetor.

In this latter arrangement of my invention the fuel supply pipe slants upwardly from the supply tank to the carburetor, such positioning of the supply pipe providing for the continuous flow of gasoline, which. as it becomes heated, flows up the pipe toward the carburetor, instead of straight across or upwardly into the carburetor in the usual way.

Since the airsupply pipe is preheated and the primarily heated volatilized fuel, asit passes from the carburetor to the engine intake, is superheated, as hereinbefore explained, a particularly eflicient means for the purposes set forth, of extreme simplicity,

and capable of being readily set into or out a of operative condition has been provided.

lVhat I claim is:

In a preheating means for carburetors the combination with the air intake pipe and the vaporized fuel oiftake pipe of the carburetor and the pipe from the.fuel tank to the carburetor. an electric circuit including separate heating coils; on the air intake pipe and the fuel otftake pipe and on the pipe that connects the fuel tank with the carburetor, said heating coils being connected in series and a source of current supply and a control switch connected in series with said coils substantially as shown and for the purposes described. 

